Improvement in gates



8. ROGERS. Gate.

NO. 199,227. Patented Jan.15, 1878.

mm-as. PNOTO-LIIHOGRAPNER. w'AsmNm-on n c UNITED STATES PATENT OFFICE.

SAMUEL ROGERS, OF PITTSBURG, PENNSYLVANIA.

.IMPROVEMENT IN GATES.

Specification forming part of Letters Patent No. 199,227, dated January 15,1878,- application filed September 1, 1877.

To all whom it may concern: (the bolts) strike the inclined face of the stops Be it known that I, SAMUEL ROGERS, of to fall back into the slots or holes, as will be Pittsburg, in the county of Allegheny and readily understood; or this may be efiected by State of Pennsylvania, have invented certain springs a as shown. new and useful Improvements in Automatic a a are the gate-pintles, the former of which Gates, of which the following is a specificacarries a grooved wheel or disk, D, between tion V the flanges d d of which are pivoted eccentri- My invention relates to that class of auto- Cally, and on opposite sides of the pintle a, two matic gates, which are opened and closed by links, E E, the grooved wheel or disk D servone of the wheels of a passing vehicle. ing to hold the links in proper position, while The invention consists in the application said links not only guide the connecting rods to one of the gatepintles of a double gate, or or wires properly, but prevent their becoming to the pintle of a single gate, of a grooved entangled, as is so frequently the case in gates wheel or disk, between the flanges of which of this character in which flexible connections are pivoted eccentrically two operating-links, are employed to actuate the gates by a pulling I to which links the double connection with the motion, instead of rigid rods to actuate said wheel-irons are attached. gate-sections by either a pulling or a pushing The invention further consists in the cornmotion.

bination, with the grooved disk and links and e 6 6 e are the connections between the the operating-wires and the wheel-irons, of a links E E and the three-armed levers F F, three-arm ed lever rigidly mounted upon a prorigidly mounted on the treadles or wheel-irons jection of said wheel-irons. G G. I prefer to employ wire-connections, In the accompanying drawings, Figure 1 is though any other suitable material may be a plan view, showing the general arrangement used, such as ropes or rods but owing to the of mechanism for operating a double gate; greater durability of wire as to that of ropes, and Fig. 2 is a perspective View of a double and said wire being equally as durable as gate constructed and arranged according to rigi Connecting-rods, and much less expenmy invention. sive, I prefer to employ the wire-connections A A are the two sections of a double gate, 6 e .6 e, which are arranged as follows: hung upon their respective posts B B in such One end of the wire 6 is connected to one manner as to impart to said sections a slight end of the guide-link'E, while the other end lifting movement, eitherwhen opened or closed. of said wire is connected to the short central This manner of hanging the gates is well arm f of the three-armed lever F, the outer known, and need therefore not be particularly end of wire 6 being connected to the lower described here. I employ these means for long arm f of the three-armed lever F, the the purpose of lockingthe gates automatically, inner end of said wire 0 being connected to either in a closed or open position, by the folthe other end of link E. The wire e is conlowing means: nected at one end to the lower long arm f of C O are stops having a slightly-inclined the lever F, and at the other end to the link face, and provided with slots or perforations .0 and the wire e is connected at one end to c c.. The stop 0 serves to hold the gates in said link E and at the other to the short cena closed position, and the stops 0 hold the tral arm f of the lever F. The upper long sections A A in an open position by means arms f of the levers F F are rigidly connected of the bolts a a with which 7 each section is to one arm, 9 g, of the wheel-irons G G, which provided. These bolts project sufficiently belatter are constructed and arranged as usual low the sections A A to permit them to enter in all other respects. The levers F F are pivthe slots or holes 0 c inthe stops, and be lifted oted centrally upon short studs affixed to the out of the said holes or slots when the gate is inclosing-casing, as shown at f opened or closed. These bolts slide freely in The pintle a of the gate-section A carries their bearings, and are pushed up by the moa lever, H, to one arm of which is connected mentum of the gate-sections as soon as they one end of a wire, h, the other end being connccted with the grooved disk D on one side of the pintle a, as shown at (1 a second wire, h, being connected at one end with the opposite arm of the lever H, and at the other end said wire it is connected to the disk D at the opposite side of the pintle a, as shown at 01 the wires h h crossing each other, as shown at h".

It is evident from the arrangement of disk I), levers H F F, their respective connections, and the wheel-irons G G that when either of the latter is caused to actuate the mechanism for opening or closing the gate-sections the power applied is exerted upon the whole series of the connecting-wires in both directions throughout their length. For instance, supposing the gates to be closed, as shown in Fig. 2: When power is applied to wheel-iron G to open the gate, the lower arm f of the lever F will pull in the direction of the arrow upon the wire a, link E, wire 6', and the short arm of lever F, as well as upon the wire h and one arm of lever H, while the lower arm f of lever F will pull upon wire a, link E, wire 6,

short arm f of lever F, wire h, and the other arm of lever Hin an opposite direction to that of the arrow, to impart to the disk D and lever H, and with them to the gate-sections A A, one-half of a revolution upon their axes or pintles.

B y these means no power will be lost, as it is evident from what has been said above, and

from the peculiar construction of levers F F H, that the moment power is applied in one direction to the wheel'irons to actuate one set of connecting-wires said power is at the same time applied to the other set of connectingwires in a reverse direction to rotate the disk D and lever H, and with them the gate-sections. I

I am aware that disks have been used upon gate-pintles in combination with one or more operating-wires connected directly with said disks; and I do not wish to claim such an arrangement.

Having now described my invention, what I claim; and desire to secure by Letters Patent, is

The combination of the gate-pintle a, flanged or grooved disk or wheel D, the rigid links E E,.pivoted between the flanges of said disk on opposite sides thereof, and eccentric to the pintle, the operating-wires e e 0 0 the threearmed levers F F, and the wheel-iron s, all constructed and operating substantial1 as set forth.

In witness that I claim the foregoing I have hereunto set my hand this 29th day of August, 187 7 SAMUEL ROGERS.

Witnesses:

FRANK 1. DEVOE, XVM. I-I. STERRITT. 

